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One evolutionary idea is that the number of amino acids differences in a similar protein from different species can be used as an evolutionary clock. The rate of amino acid substitution varies among p
Malic dehydrogenase (MDh) can exist in two types, A and B. among all fruit flys captured in Austin, TX, 95.7% type A allele where detected and 4.3 % type B alleles were detected. Xanthine oxidase, ano
a)what percentage of the population display the phenotype B?
Punnett and a co-worker studied genetics in sweet peas. they found one gene that controlled purple(P) or red (p) flowers and another that controlled Long (L) or round (l) pollen. Parental true- breedi
If normal GFR is maintained but tubular reabsorption is completely blocked
Examine the principal appendicular muscles of the body and distinguish their origins, insertions, actions, and innervations.
From the laboratory manual, Human anatomy & physiology laboratory manual, fetal pig version, read:
What is the effect of DCCD on electron transport and respiration in suspensions of intact mitochondria?
If the smooth endoplasmic reticulum were removed from the cell, which of the following processes would be most affected?
On July 8th, a woman was given an antibiotic for presumptive sinusitis. However, Her condition worsened, and she was unable to eat for 4 days because of her severe pain and tightness of the jaw. On Ju
Imagine the process of translation. A ribosome is bound to an mRNA and has moved several codons downstream from the start codon. At this point in time, the E site, the P site, and the A site all conta
One thing biologists do in order to determine how a cell or organism works is to find a mutant that does not do the activity. They go on a mutant hunt! Because it can take a long time, biologists spee
Estimating evolutionary time periods by employing gene product differences generates a continuum of very slow changes to relatively rapid changes. Nuclear gene products change(mutate) slower than mito
How you would prepare a cDNA library from the mRNA transcripts produced by ovary cells and mass-produce progesterone using bacteria.1. producing cDNA's from mRNA's 2. cloning the cDNA's into bacterial
In studying evolution, a common characteristic can be compared to determine how much variability exist among species. An example in vertebrate species is the umber of differences in hemoglobin.
Protons are generated during photosynthesis. Describe the fate of these protons and explain how they contribute to the conversion of light energy into chemical energy.
While making yourself a yummy lunch, you realize you are salivating. How can smelling lunch cause your salivary glands to release saliva? In your answer consider sensory systems (smell), neurons (tran
A particular neuron (A) is post-synaptic to two other neurons (B and C). One of the pre-synaptic neurons (B) formed a synapse on cell A's axon initial segment. Neuron C formed a synapse on one of A's
Generally describe three mechanisms for how short RNAs in eukaryotes (siRNAs, miRNAs, and piRNAs) silence expression.
Select the three statements that are true. To review the germ layers and the terminology associated with body cavities.
The government of Iceland has built a database which contains genetic information about individuals using SNP analysis and other methods, which can be used to help diagnose predisposition to genetic d
Why selection inevitably favors any gene that is good at getting into the next generation, regardless of whether that gene helps or hurts the ecosystem, the species, the group, or even the individual?
For each of the following statements about Peptidoglycan, answer TRUE or FALSE.
A diploid cell contains three pairs of homologous chromosomes designated C1 and C2, M1 and M2, and S1 and S2. No crossing over occurs.